Strain Information: 4018/1

Division/Phylum: Heterokontophyta/Ochrophyta    Class: Oomycota


Eurychasma dicksonii (E.P. Wright) Magnus

CCAP 4018/1
Isolator: Müller (2005)
Origin: Marine; intertidal, Le Caro, Rade de Brest, Brittany, France
Culture: Medium half strength Provasoli; Bacteria present; sub; 9-15 deg C; lighting 2-10 µE.m-2.s-1 (higher intensities seem to inhibit propagation of Eurychasma)
Other: Orig. desig. Eurychasma 2005 Caro; this is an unialgal host culture - Eurychasma (an oomycete parasite of brown algae) is an obligate biotroph, i.e. it cannot grow outside its host. The host in which this strain is maintained is Macrocystis pyrifera CCAP 1323/1. The original host was Ectocarpus sp. CCAP 1310/299.; syn. Rhizophydium dicksonii;
Available Images (5):


References [10]   EMBL Links
Sekimoto S, Beakes GW, Gachon CMM, Müller DG, Küpper FC & Honda D (2008) The development, ultrastructural cytology, and molecular phylogeny of the Basal Oomycete Eurychasma dicksonii, infecting the filamentous Phaeophyte algae Ectocarpus siliculosus and Pylaiella littoralis. Protist 159: 299-318.
DOI: 10.1016/j.protis.2007.11.004

Gachon CMM, Strittmatter M, Müller DG, Kleinteich J & Küpper FC (2009) Detection of differential host susceptibility to the marine oomycete pathogen Eurychasma dicksonii by real-time PCR: Not all algae are equal. Applied and Environmental Microbiology 75(2): 32-328.
DOI: 10.1128/AEM.01885-08

Grenville-Briggs L, Gachon CMM, Strittmatter M, Sterck L & Kuepper FC (2011) A molecular insight into algal-oomycete warfare: cDNA analysis of Ectocarpus siliculosus infected with the basal oomycete Eurychasma dicksonii. PLoS ONE 6: -.
DOI: 10.1371/journal.pone.0024500

Zambounis A, Strittmatter M & Gachon CMM (2013) Chronic stress and disease resistance in the genome model marine seaweed Ectocarpus siliculosus. Aquatic Botany 104: 147-152.
DOI: 10.1016/j.aquabot.2012.07.008

Tsirigoti A, Kupper FC, Gachon CMM & Katsaros C (2013) Cytoskeleton organization during the infection of three brown algal species Ectocarpus siliculosus, Ectocarpus crouaniorum and Pylaiella littoralis by the intracellular, marine oomycete Eurychasma dicksonii. Plant Biology 1: 272-281.
DOI: 10.1111/plb.12041

Tsirigoti A, Beakes GW, Herve C, Gachon CMM & Katsaros C (2014) Attachment, penetration and early host defense mechanisms during the infection of filamentous brown algae by Eurychasma dicksonii. Protoplasma -: -.
DOI: 10.1007/s00709-014-0721-1

Strittmatter M, Grenville-Briggs LJ, Breithut L, van West P, Gachon CMM & Küpper FC (2015) Infection of the brown alga Ectocarpus siliculosus by the oomycete Eurychasma dicksonii induces oxidative stress and halogen metabolism. Plant, Cell and Environment -: -.
DOI: 10.1111/pce.12533

Strittmatter M, Gachon CMM, Müller DG, Kleinteich J, Heesch S, Tsirigoti A, Katsaros C, Kostopoulou M & Küpper FC (2015) Intracellular eukaryotic pathogens in brown macroalgae in the Eastern Mediterranean, including LSU rRNA data for the oomycete Eurychasma dicksonii. Diseases of Aquatic Organisms 104: 1-11.
DOI: 10.3354/dao02583

Tsirigoti A, Küpper FC, Gachon CMM & Katsaros C (2013) Filamentous brown algae infected by the marine, holocarpic oomycete Eurychasma dicksonii. Plant Signaling & Behavior 8: e26367.
DOI: 10.4161/psb.26367

Fletcher KIG, van West P & Gachon CMM (2016) Nonagonal cadherins: A new protein family found within the Stramenopiles. Gene 593: 64-75.
DOI: 10.1016/j.gene.2016.08.003

AB368177 (COX2)
FR696317 (LSU (28S))
AB368176 (SSU (18S))

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Catalogue updated: 2 September 2016